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A kind of preparation method of porous dicalcium silicate bioactive ceramic support

A technology of dicalcium silicate biological and active ceramics, applied in the field of materials science, can solve the problems of complex molding process, inability to precisely control the scaffold structure, etc., and achieve simple molding process, excellent biodegradation performance and mineralization performance, and good mechanical properties. Effect

Active Publication Date: 2020-11-24
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the present invention provides a method for preparing a porous dicalcium silicate bioactive ceramic support. The preparation method of the porous dicalcium silicate bioactive ceramic support solves the problems in the prior art The molding process for preparing ceramics is complicated, and the internal structure of the stent cannot be precisely regulated.

Method used

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  • A kind of preparation method of porous dicalcium silicate bioactive ceramic support
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  • A kind of preparation method of porous dicalcium silicate bioactive ceramic support

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Effect test

Embodiment 1

[0021] A kind of porous dicalcium silicate active ceramic support of the present invention and preparation method thereof, comprises the following steps:

[0022] Step one, prepare a silicone resin / isopropanol solution. Mix the silicone resin and isopropanol evenly according to the mass volume ratio of 1.25g / ml, stir quickly and evenly, and then seal and store.

[0023] Step 2, preparing silicone resin / calcium carbonate printing paste. Pass the calcium carbonate powder through a 400-mesh sieve, then take a certain amount of calcium carbonate according to the mass ratio of calcium carbonate and silicone resin of 2.79:1, add the silicone resin / isopropanol solution prepared in step 1, stir quickly and evenly, Then keep it sealed.

[0024] Step three, designing the external shape and internal structure of the silicone resin / calcium carbonate stent. CAD computer-aided software was used to design the external shape and internal structure of the scaffold. The scaffold model was bl...

Embodiment 2

[0028] A kind of preparation method of porous dicalcium silicate active ceramic support of the present invention, comprises the following steps:

[0029] Step one, prepare a silicone resin / isopropanol solution. Mix the silicone resin and isopropanol evenly according to the mass volume ratio of 1.43g / ml, stir quickly and evenly, and then seal and store.

[0030] Step 2, preparing silicone resin / calcium carbonate printing paste. Pass the calcium carbonate powder through a 400-mesh sieve, then take a certain amount of calcium carbonate according to the mass ratio of calcium carbonate and silicone resin of 2.79:1, add the silicone resin / isopropanol solution prepared in step 1, stir quickly and evenly, Then keep it sealed.

[0031] Step three, designing the external shape and internal structure of the silicone resin / calcium carbonate stent. Using CAD computer-aided software to design the external shape and internal structure of the scaffold, the scaffold model is block (8×8×8mm)...

Embodiment 3

[0035] A kind of preparation method of porous dicalcium silicate active ceramic support of the present invention, comprises the following steps:

[0036] Step one, prepare a silicone resin / isopropanol solution. Mix the silicone resin and isopropanol evenly according to the mass volume ratio of 1.67g / ml, stir quickly and evenly, and then seal and store.

[0037] Step 2, preparing silicone resin / calcium carbonate printing paste. Pass the calcium carbonate powder through a 200-mesh sieve, then take a certain amount of calcium carbonate according to the mass ratio of calcium carbonate and silicone resin of 2.79:1, add the silicone resin / isopropanol solution prepared in step 1, stir quickly and evenly, Then keep it sealed.

[0038]Step three, designing the external shape and internal structure of the silicone resin / calcium carbonate stent. Using CAD computer-aided software to design the external shape and internal structure of the scaffold, the scaffold model is block (8×8×8mm),...

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Abstract

The invention provides a preparation method of a porous dicalcium silicate bioactive ceramic scaffold. The preparation method includes the steps of preparing a silicon resin / isopropanol solution; adding calcium carbonate powder into the silicon resin / isopropanol solution with stirring evenly to obtain printing paste; designing an appearance and an interior structure of the scaffold by CAD software; printing the paste through layer-by-layer heaping in a three-dimensional printing procedure to obtain a green body of the scaffold; putting the green body of the scaffold in a tubular atmosphere furnace for sintering so as to obtain the porous dicalcium silicate bioactive ceramic scaffold; improving the dicalcium silicate ceramic strength through adjustment of the sintering temperature. The porous dicalcium silicate bioactive ceramic scaffold has an adjustable three-dimensionally connective macroporous structure and is excellent in mechanical property and biological properties such as mineralization and degradation.

Description

technical field [0001] The invention belongs to the field of materials science, and relates to a bone tissue engineering support, in particular to a preparation method of a porous dicalcium silicate bioactive ceramic support. Background technique [0002] The preparation of ceramic materials from polymer precursors is a novel method for preparing ceramics. Its core advantage is that it can be molded by polymer molding, and then pyrolyzed and crystallized into ceramics under high temperature and under the protection of a certain atmosphere. The preparation methods of traditional ceramics include solid state reaction method, sol-gel method, molten salt method, etc. Among them, the solid state reaction method is the most mature and widely used, but these methods have the disadvantages of high reaction temperature and difficult molding, while the precursor method The reaction temperature of the method for preparing ceramics is relatively low, and the use of polymer molding meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B35/22A61L27/10A61L27/50A61L27/56A61L27/58C04B111/40
CPCA61L27/10A61L27/50A61L27/56A61L27/58C04B35/22C04B38/00C04B2111/40C04B2235/6026
Inventor 朱钰方傅声扬田昕刘石薇徐锦鑫蔡旭
Owner UNIV OF SHANGHAI FOR SCI & TECH
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